//#ifndef GLWIDGET_H
//#define GLWIDGET_H
//
//#include <QOpenGLWidget>
//#include <QOpenGLFunctions>
//#include <QOpenGLBuffer>
//#include <QMatrix4x4>
//
//QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram);
//QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)
//
//class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions
//{
//  Q_OBJECT
//
//public:
//  explicit GLWidget(QWidget *parent = 0);
//  ~GLWidget();
//
//  void SetImage(const QImage &img);
//  void setClearColor(const QColor &color);
//
//  QSize minimumSizeHint() const Q_DECL_OVERRIDE;
//  QSize sizeHint() const Q_DECL_OVERRIDE;
//  void rotateBy(int xAngle, int yAngle, int zAngle);
//
//signals:
//  void clicked();
//
//protected:
//  //void initializeGL() Q_DECL_OVERRIDE;
//  //void paintGL() Q_DECL_OVERRIDE;
//  //void resizeGL(int width, int height) Q_DECL_OVERRIDE;
//	void initializeGL() Q_DECL_OVERRIDE;
//	void resizeGL(int w, int h) Q_DECL_OVERRIDE;
//	void paintGL() Q_DECL_OVERRIDE;
//
//  void mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
//  void mouseMoveEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
//  void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
//
//private:
//  void makeObject();
//  void setView(int w, int h);
//
//  QColor clearColour;
//
//  int xRot;
//  int yRot;
//  int zRot;
//  QPoint lastPos;
//
//  QOpenGLShaderProgram *program;
//  QOpenGLBuffer vbo;
//
//  QOpenGLTexture *frame_texture;
//  bool hasTexture;
//  float v_aspect;
//};
//
//#endif

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/


#ifndef GLWIDGET_H
#define GLWIDGET_H

#include <QOpenGLWidget>
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>

QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram);
QT_FORWARD_DECLARE_CLASS(QOpenGLTexture)

class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions
{
	Q_OBJECT

public:
	explicit GLWidget(QWidget *parent = 0);
	~GLWidget();

	QSize minimumSizeHint() const override;
	QSize sizeHint() const override;
	void rotateBy(int xAngle, int yAngle, int zAngle);
	void setClearColor(const QColor &color);

signals:
	void clicked();

protected:
	void initializeGL() override;
	void paintGL() override;
	void resizeGL(int width, int height) override;
	void mousePressEvent(QMouseEvent *event) override;
	void mouseMoveEvent(QMouseEvent *event) override;
	void mouseReleaseEvent(QMouseEvent *event) override;

private:
	void makeObject();

	QColor clearColor;
	QPoint lastPos;
	int xRot;
	int yRot;
	int zRot;
	QOpenGLTexture *textures[6];
	QOpenGLShaderProgram *program;
	QOpenGLBuffer vbo;
};

#endif